Island



(No Model.) 3 Sheets-Sheet 1.

J. D, GOTTRELL.

' LOOM. N0. 265,486. Patented Oct. 3, 1882.

INVENTEIHL QJMM N. PETERS, Plxulmlnbcgmphen Waamnglnn. B c.

a Sheets-Shet 2.,

J. D. COTTRELL.

(No Model.)

LOOM.

Patented Oct. 3, 1882 WITNEEEEEI INVENTURI a; (yaw/z (No Model.) a Sheets-Sheet 3.

J. D. UOTTRELL.

LOOM.

Patented Oct. 3," 1882 z E F INVENTUFM A/ITNEEEEE.

N. PETERS. Fhnlmblhognphur. Washington. a. u

UNITE STATES JESSE D. COTIRELL, OF CENTRAL FALLS, RHODE ISLAND.

LOOM.

SPECIFICATION forming part of Letters Application filed February 24, 1882.

My invention relates to improvements in.

that class of looms in which the reed-frame is made automatically separable from the layframe; and the objects of my improvement are to provide against damage caused by the ac cidental entanglement of a shuttle within the shed, to afford facilities for stopping the reedtrame at an intermediate point of its course, and to guard against the rebound of the shuttle. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 represents a vertical transverse section through the forward part of the loom, showing the reed bed or frame locked to the lay-frame. Fig. 2 represents a front elevation of one end of the lay, showing the side of one of the shuttle-boxes. Fig. 3 represents a top view of the lay without the reed and partly in section. Fig. 4 represents a back elevation of the lay .without the reed. Fig. 5 is a partial section of the loom on a reduced scale with the lay-frame moved fully forward, showing in full lines the reed-frame at its intermediate stopping-point and indicating in dotted lines the extreme forward and rearward positions that are assumed by the reed-frame. Fig. 6 represents amodification of the parts shown in Fig. 5. Fig. 7 represents a sectional view, showing the reed bed or frame unlocked, with the lay-frame at the proper point for stopping the loom. Fig. 8 represents a partial view of the right-hand end of the loom with the shuttle and shuttle-box in section, showing the position of the shipper-dagger when the reedframe is locked to the lay-frame. Fig; 9 represents a similar view with the shuttle-box in elevation, showing the position of the shipperdagger when the reed-frame is unlocked. Fig. 10 represents a partial end view of a loom having a protector-bar and brake, showing a spring interposed between the protectorbar and the friction-brake for stopping the momentum of the loom. Fig. 11 represents an enlarged side elevation of the rod shown in Patent No. 265,486, dated October 3, 1882.

(No model.)

Fig. 10 for connecting the protector-bar to the friction-brake. Fig. 12 represents a modification of the spring mechanism for stopping the reed-frame at its intermediate position.

In the accompanying drawings, A is the frame of the loom; B, the breast-beam; O O, the harness; D, the shed formed in the warps;

operating the lay; Gr, one of the pitmen connecting the cranks and lay. The lay-frame, carrying the shuttle-race H, is pivoted to the loom-frame A at the lower end ot'the lay-standards I I, and the reed-frame J is pivoted to the lay-standards I I at the lower end of the reedt'rame swords K K.

To the bracket L, attached to the cross beam M of theloom-frame A, is secured the tlatspring N, having its upper end connected loosely to the front of the reed -frame by means of the strap 0, attached to the bottom of the reedbed. The spring N is secured to the upright arm of the bracket L by means of the bolts a a, so that the lower end of the spring will be firmly held against the face of the bracket, and at the upper end of the upright arm of the bracket is placed the set-screw I), made to screw through the bracket, with the point of the screw resting against the surfaceot" the spring, whereby when the screw 1) is made to advance by screwing it through the bracket the upper end of the spring N will be thrown backward, thus adj ustably controlling the forward position assumed by the reed-frame J,

when said reed-frame is unlocked, as hereinafter described. The fiat bar-spring N, being th us rigidly attached to the frame of the loom, will serve in its unbent condition to hold the reed-frame J, when the latter has been unlocked from the lay-frame, in the intermediate position shown in dotted lines in Fig. 1 and in full lines in Fig. 5, while the'lay-frame, carrying the shuttle-race H, moves from that position to the limit of the forward stroke of the cranks F, as indicated in Fig. 5 by full lines. The extreme backward stroke of the reedframe is represented by the dotted lines at the left-hand side in Fig. 5.

When the lay-frame and shuttle-race on the backward stroke reach the reed-frame they will carry the reed-frame backward against the ac E, the woven web; F, one of the cranks for.

connected to and operated by the spring N.

tion of the spring N, the projecting flange 0 of the race-plate passing immediately over the top of the reed-bed, so thatits edge wiliextend to near the lower portion of the front of the reed, and after the loom-cranks 1* have passed their center the lay-frame and reed-frame will move forward together, the one with a positive and the other with a spring movement. until the spring Nis relieved from backward fiexure, alter which the lay-frame will be carried to its forward limit without the accompaniment of the reed-frame, if the latter still remains unlocked. The point for thus stopping the reedframe by causing the spring N to become released from tension may be adjustably controlled within desirable limits by means ofthe adjustingscrew I), as above described.

To the under side of thereed-bed, and at each end of the same, are secured the catch-pieces P, each provided with a notch or downward lip, (I.

The protector-shaft E, held in the lay-standards l l, is provided with rigidly-attached pawls Q for locking the reed-flame to the layt'rame, the pawls Q being forced downward to their unlockingpositiou by means of the springs c c and thrown up to lock the reed-trame to the lay-frame by the action of the shuttle when entering a shuttle-box upon the shuttle-binder thereof.

To the extreme ends of the protector shaft E are secured the curved fingers 1t 11, made to press against the ends of the fiat springs S S, secured to the outer sides of the shuttlebiuders T T, which are pivoted to the shuttleboxes at the pointsff. The free end of each spring S is made to spring outward from the side of the shuttle-binder, and the extent of its movement from the side of the binder is regulated by means of the limiting-strap U, secured to each binder. The springs S S of the shuttle-binders may be properly adjusted to press outward against the inner face of the straps U U to such a degree that a slow outward movement of either one of the shuttlebiuders will cause the proper upward movement of the ends of the pawls Q against the downward action of the springs e 0 without causing an inward movement of the spring S from its contact with the retaining-strap U; but upon the sudden movement of the shuttle binder,resulting from the entrance of the shuttie into the shuttle-box, the inertia of the shaft and pawls, in conjunction with the force of the springs 0 0, will cause the comparatively stronger spring S to yield, and thus form a lively quick-acting springcushion for the shuttle to prevent the rebound ot' the same after its entrance into the shuttle-box. W'hen the shuttle passes properly from one shuttle-box to the other the consequent outward movement of the shuttle-binder of the latter box will cause the pawls Q, to be elevated so as to catch behind the lips (Z of the catches on the reed bed, thus bringing the reed-frame forward (from its stopping position) against the backward action of the spring N to beat up the weft; but in case the shuttle fails from any cause to enter the box, then the pawls Q, remaining in their depressed position, will allow the reedl'rame to stopin an intermediateposition at the end of the forward beat of the spring N, so that in case the shuttle has become entangled in the shed the warp-threads will be protected from damage, the momeu tum of the reed-frame being properly checked by the refiex action of the spring N.

The springs S S, which intervene between the shuttlebinders and pawls, serve to allow for the insertion of a filled shuttle into the shuttlebox at every required pointin the stroke of the lay, and the interposition of a spring between the pawls and the shuttle-binders becomes necessary in order to allow for the proper passage of the lips (I over the ends of the pawls Q under all the required conditions of the insertion of the shuttle. The position of the lay in which it would be inexpedient to insert ashuttle without the interposition of a springbetween the pawls and the shuttle-binder is shown in Fig. 7, where, upon the insertion of a shuttle into the shuttle-box, the pawls (Q, will be brought to their elevated position, as indicated by the dotted pawl in the figure, and at the backward movement of the lay-frame the ends of the pawls will be brought in contact with the lips (I in such a manner that in the absence of a yielding movement applied to the pawls the connected parts would either become broken or be soon thrown out of ad] ustment.

The pawls Q and the fingers R are so adjusted relatively to each other and fixed to the protector-rod E that the pawls, by striking against the under side of the catch-pieces l at the bases of the lips (I, will form a stop to the backward movement of the fingers It, which will thus be firmly held against the springs S, the pressure of which will be transmitted through the shuttle-binder to the shuttle, and will serve, when properly adjusted, to prevent the rebound of the shuttle from the shuttle-box.

1n carrying out my invention the reed-fran'ie may be spring-conneeted to the frame of the loom in a variety of ways, so as to be brought forward at the back of the lay-frame, and be stopped atan intermediate point in the forward stroke by a spring.

An example of an alternative construction of spring mechanism for operating the reedframe as above described is shown in Fig. (i, in which a curved cam, B, is pivoted to the breast-beam B or to the frame A, so as to be depressed at its outer end by the downward action of the spring 0. The cam B passes through a slotted guide, D, attached to the reed-bed, and carrying a friction-roll, d. The tension of the spring U is so adjusted that the downward pressure of the curved cam ll upon the friction-roll (1 will be sufficient to bring the reed-frame forward with the lay-frame to the intermediate point, and the forward momentum of the reed-frame will be checked by the reflex action of the cam and springs exerted upon the roll d after passing the highest point, b, in the curve of the cam; and, in case the reedt'rame becomes locked to the shuttle-race by the proper movement of the shuttle, as above described, then the reed-frame will be brought forward to beat up the weft against the action of the cam B and spring 0.

Another construction of the spring mechanism for operating the reed-frame is shown in Fig. 12, in which the stand L, bolted to the cross-beam M of the loom, serves to support the lever 0, joined to the reed-bed, and pivoted to the stand L at the point'l. Thelever O is provided with two oppositely-arranged recessed arms,p 2, under which are placed rubber springs N N, made adjustable in their degree of tension by means of the screws I) I). A portion of the arm 19 and a corresponding part of the stand L is represented as broken away to show the cylindricalrubber spring N with a metallic plate, at, intervening between the end of thescrew I) and the spring. By means of this arrangement the reed-frame will be brought Forward bythe upward action of the spring N, and will be checked at its intermediate point by the opposing action of the spring N, thus bringing the reed-frame to a full stop by the reflex action ot'the spring mechanism.

To one end of the 1 rotector-shatt E is rig idly secured the dagger \V, the angular position of which is controlled by the entrance of the shuttle into the shuttle-box. If desired,

this dagger may be arranged to engage with the arm X upon the springshipper handle Y, as shown in Fig. 8, so that in case the shuttle J properly enters the sh uttle-box the dagger will, at the completion of the forward stroke of the lay, pass over the top ot'the arm X; but in case the shuttle should fail to enter the shuttle-box, as shown by the empty shuttle-box Z in Fig. 9, and bythe back ward position of thereed-frame indicated in said figure, then the failure of the shuttle-binder to raise the end of the dagger W will allow the forward end of the dagger to strike against the end of the arm X and throw the spring-shipper Y out of its resting notch, thus stopping the further movement of the loom.

One of the great advantages secured by my improved reed-frame operated by the locking device and an opposing spring, as above described, is that I am enabled to bring the point at which dagger WV acts upon the protectorbar or shipping devices of the loom farther forward in the stroke of the lay-frame than when afixed reed-frame is employed, and thus secure more time for effecting the proper elevation of the dagger W by the movement of the shuttle. In ordinary fast-reed looms the daggerisoaused to engage with the shipper-handle so early in the forward movement of the lay that there is great liability of the dagger striking the extreme point of the spur on the protector-bar whenever the shuttle arrives late in the shuttie-box, thus seriously wearing and damaging the points of contact.

In connection with the features of my invention already described, I prefer to employ a brake which is applied to the driving-shaft of the loom simultaneously with the movement of the shipper from its retaining-notch in order to prevent the momentum of the driving-shaft from continuing the movement of the loom, which would cause the shuttle to be again thrown into the shed. To secure this result, I employ the releasing-pulley brake shown in Fig. 10, in which the pivoted brake-lever R is connected to the end of the protector-bar S, by means of the connecting-rod T, which is provided with a rod, 1", having a screw-thread upon both ends. Upon one end of the rod 1" is screwed the connecting-eye s, with a checknut, 75, and the opposite end of the rod 1" passes loosely through a central hole, u, in the rear end of the slotted bar v. Over the rod r, within the slot to of the bar 0), is placed the spiral spring ac, which is adjustably compressed by means of the nuty, held loosely in an enlarged portion of the slot to, between the forward end of the slot and the opposite shoulders o 0, and

the forward end of the rod 1'' enters the guiding-socket z. The distance between the eye q for connecting the rod 2) with the protector-bar and the eye 8 may be properly adjusted by turning the eye 8 upon the rod 1' and securing the same in position by means ofthe check-nut t, and the tension of the springx may be properly adjusted by turning the rod 1, while the nut y is held stationary. The spring 00, operating between the rear end of the slot 10 and the side of the nut 1, serves to force the forward end of the rod '1 against the bottom of the guiding-socket z. The brake-shoe G is loosely pivoted upon the brake-lever R by means of the stud H, which enters a slot, 1, made inclined to the curved lriction-t'ace ot'the shoe.

The dagger V is arranged to engage with the spur V, upon the protector-bar, to s-'0p the loom, and in the proper action of the shuttle upon the shuttle-binder passes above the spur V, as shown by the dotted lines; but in case of the failure of the shuttle to reach its shuttie-box, then the dagger \/V will remain in its depressed position, and by its consequent engagement with the spur V will cause the simultaneous movement of the spring-shipper Y from its retaining-notch and the application of the brake G to the brake-pulley K, the resulting compression of the spring 00 of the connectingrod T serving to gradually check the momentum of the lay, thus bringing the loom to a full stop without serious shock, the brake-shoe G beingprovided with theinclined slot 1, through which the pivot or stud H passes, will now become released from strain upon a slight movement ofthe loom in a backward direction. The spring 00 will cause a backward movement of the lay-frame in this way: The spring being compressed when the dagger abuts against the IIO protectoebar, will, by its reaction upon the protector-bar, (to which the springis connected by means of the connecting-rod,) cause the layframe to move backward until the resistance of the movable parts of the loom becomes just equal to the tension of the spring, and the back ard movement will be snt'licientto release the brake-shoe; but in case the lay-frame is made to stop at its complete forward stroke or movement, or there-about, then the position of the cranks will be at or near the deadcenter and prevent the spring on the connecting-rod lrom action to produce the movement desired. In that case a slight movement may be imparted by hand, causing the backward movement of the brake-pulley K and the immediate rise of the brake-shoe G upon the stud H and the release of the brake-shoe by reason of the incline of the slot I, which will allow the loom to be subsequently started by the proper movement of the belt-shipper.

The ordinary position of the lay of a loom provided with a tixed reed, when stopped by means of the contact of the dagger with the protector-bar, is indicated by the position of the lay-frame shown in full lines in Fig. 7, which shows the dagger \V in engagement with the spur of the protector -bar. In this arrangement there is left between the reed and fell of the cloth being woven a space suflicient for only one shuttle; but with my improved spring-operated reed-fra me, stopping at an intermediate point, as described, sufficient space may be left for two shuttles, J, between the reed M and the fell ot' the web E by adjusting the spring stopping mechanism to hold the reed-frame back a suitable distance from the fell. 1 can also bring the stopping-point of the loom, or the point at which the dagger \V engages with the protector-bar, farther forward in the crankstroke, as represented in Fig. 7 by the dotted lines, which show the front of the lay-frame in theforward position, and thus secure more time for effecting the proper elevation of the dagger \V by the movement of the shuttle.

In order to provide for the possibility of a shuttle completing its travel and arriving at the opposite shuttle box subsequent to the separation of the reed-frame from the lay-frame, I attach the backward-curved arms F F to the standards 0 O at the rear of the shuttleboxes, and provide open slots I for the passage of the arms I through the shuttle-guiding wings I) I), which extend from the side of the reedswords U C toward the shuttleboxes Z. The curved arms F F serve to guide the point of the shuttle into the shuttle-box whenever the shuttle arrives after the reed has been stepped back from the shuttle-race, as above mentioned.

In my patent of July 4, 1876, No. 179,402, I have shown a reed-frame locked to the layframe by the entrance of a shuttle into the shuttle-box; but the reed-t'ran'ie there shown and described is made to partake of the full movement of the lay-frame by means ofsprings arranged to continuously act upon the reedframe in the direction of the forward movement of'the lay, except when the reed-frame is stopped in itsforward movement by the contact of the attached dagger with the protector-bar; but in my present improvement the springs or spring employed to act upon the reed-frame operate at its initial forward movement in the direction of the movement of the lay and at its terminal forward movement in the opposite direction, whereby the former dagger upon the reed-frame (shown in said patent) is dispensed with and the reed frame stopped, when necessary, without sudden shock by the action of the opposing spring, which operates from an intermediate point in the stroke of the lay to resist the forward movement of the reedframe.

I am aware that friction-brakes in looms have been operated under a yielding pressure, and that the releasing brakeshoe described in this specification is embraced in my patent, No. 217,270,01J uly 8,1879, which patent-shows the releasing brake-shoe connected to the protector lever and combined with spring-cushions in the pitmen, whereby themomentum of the lay would be suddenly thrown upon the I brake and the crank-shaft and brake-pulley become cushioned by the pitman-springs; but with my improved spring-operated reed-frame, by the employment of which a greater portion of the forward movement of the lay may be utilized for the movement of the shuttle to its shuttle-box, as hereinbefore set forth, I am practically enabled to spring-cushion the momentum of both the lay and the crankshaft by means of the spring arranged between the protector-bar and brake and by the employment of a spring in this position, by means of which the stopping shock of the loom is lessened, I am enabled to make certain portions of the lay lighter than heretofore and increase the speed of the loom.

Another advantage obtained by the spring used for stopping the reed-frame is that it counterbalances the momentum of the lay in its backward movement, overcomes its inertia, and lessens or prevents the backlash of the lay.

I claim as my invention- 1. The combination of the lay-frame with the reed-frame, means for operating said lay-frame and reed-frame, and the spring which serves to stop the reed-frame back from the lay-frame at an intermediate point in the forward beat of the lay, with a shuttle-operated locking device for bringing the reed-frame forward from its intermediate point against the action of the reedopposing spring upon the proper entrance of the shuttle into the shuttle-box, substantially as described.

2. The combination of the lay-frame with the reed-frame, means for operating said lay-frame and reed-frame, and a spring adapted to cause said reed-frame to move simultaneously in its primary forward movement with the lay-fran'ie, and to check the motion of the reed-frame at an intermediate point in the forward beat of llO IIS

the lay by the reflex action of the spring mechanism, substantially as described.

3. The combination of the lay-frame, means for operating the same, the reed-frame, and the devices for locking the reed-frame to the layframe with the shuttle-binder, shuttle-binder spring. and a stop upon the binder to limit the outward movement of the shuttle-binder spring, whereby the shuttle-binder is enabled to yield quickly to the entrance of the shuttle into the shuttle-box without imparting a similar sudden movement to the locking device, substantially as described.

4. The combination of the lay-frame, means for operating the same, a shuttle-binder, a shuttle-binder spring, and a stop for limiting the outward movement of the shuttle-binder spring with the protector-rod, its finger, and a stop for limiting the backward movement of the rod, whereby a uniform resistance may be ranged between the protector-bar and the pul- Icy-brake, substantially as described.

JESSE D. GOTTRELL.

Vvitnesses S. S. LAPHAM, OSCAR LAPHAM. 

